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Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Schedule of Basic And Diluted Earnings Per Share
The computation of basic and diluted earnings per share is shown below (in thousands, except per share amounts).
 
 
 
 
 
 
Three Months Ended
March 31,
 
 
 
 
 
2014
 
2013
Net income
 
 
 
 
$
14,339

 
$
17,511

Weighted average common shares outstanding
 
 
 
 
72,676

 
73,260

Dilutive effect of stock-based awards
 
 
 
 
493

 
522

Shares used in computing diluted earnings per share
 
 
 
 
73,169

 
73,782

Basic earnings per share
 
 
 
 
$
0.20

 
$
0.24

Diluted earnings per share
 
 
 
 
$
0.20

 
$
0.24